Observatory · observe first

Follow the allocation change

Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.

Historical time machine

Historical observation

20182026

Universe›Health Care›Pharmaceuticals›Pharmaceuticals

1 · Sector

Weight and 12M allocation change

Information Technology26.8%+8.71 pp Materials3.2%-0.02 pp Consumer Discretionary6.8%-0.23 pp Communication Services5.0%-0.29 pp Health Care16.4%-0.39 pp Real Estate3.1%-0.54 pp Consumer Staples8.2%-0.62 pp Utilities3.0%-0.62 pp Industrials12.5%-1.18 pp Energy1.9%-1.53 pp Financials13.2%-3.30 pp

2 · Industry

Inside Health Care

Pharmaceuticals4.86%-0.37 pp Life Sciences Tools & Services2.05%+0.28 pp Biotechnology2.35%-0.27 pp Health Care Services0.89%-0.17 pp Health Care Supplies0.27%+0.14 pp Health Care Equipment3.36%+0.06 pp Health Care Distributors0.32%-0.04 pp Health Care Facilities0.22%-0.02 pp Managed Health Care2.06%+0.00 pp Health Care Technology0.00%+0.00 pp

3 · Sub-industry

Inside Pharmaceuticals

Pharmaceuticals4.86%-0.373 pp

Concentrated

Most of this industry's losses came from a few companies.

View all contributions →

Pharmaceuticals · weight

4.86%

Industry change · 12M

-0.37 pp

Pharmaceuticals · contribution

-0.373 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2020 · sorted by absolute contribution to 12-month change

Company	Country	Market cap	Universe weight	3M contribution	12M contribution	12M price return	Above 6M weight average
Merck & Co. → MRK	United States	$194.1bn	0.824%	+0.823 pp	-0.243 pp	-5.0%	Yes
Johnson & Johnson → JNJ	United States	$380.9bn	1.618%	+1.616 pp	-0.205 pp	+8.1%	Yes
Bristol Myers Squibb → BMY	United States	$141.0bn	0.599%	+0.598 pp	+0.132 pp	+13.0%	Yes
Pfizer → PFE	United States	$212.9bn	0.904%	+0.903 pp	-0.115 pp	+9.1%	Yes
Zoetis → ZTS	United States	$76.2bn	0.324%	+0.323 pp	+0.035 pp	+33.8%	Yes
Lilly (Eli) → LLY	United States	$139.3bn	0.592%	+0.591 pp	+0.024 pp	+26.6%	Yes
Viatris → VTRS	United States	$0.0bn	0.000%	+0.000 pp	+0.000 pp	-10.4%	Yes

Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.